[ Upstream commit 095680f24f2673d860fd1d3d2f54f40f330b4c63 ]

This patch fixes losing lazytime when remounting f2fs.
Reviewed-by: NChao Yu <yuchao0@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>